Article 39 5.

National courts shall not give a decision which runs counter to a decision adopted by the Commission under this Regulation. They shall also avoid giving decisions which would conflict with a decision contemplated by the Commission in proceedings it has initiated under this Regulation. To that effect, the national court may assess whether it is necessary to stay its proceedings. This is without prejudice to the possibility for national courts to request a preliminary ruling under Article 267 TFEU.